Relief Dam
Relief Dam is a rockfill dam on Summit Creek, a tributary of the Middle Fork Stanislaus River, in Tuolumne County, California. The dam is part of the Spring Gap-Stanislaus Hydroelectric Project, and is owned and operated by Pacific Gas and Electric.
Completed in 1910 the dam stands above the riverbed and is long at the crest. Altogether it contains of fill. The dam forms Relief Reservoir, which has a storage capacity of of water and a full surface area of. The drainage basin behind the dam totals.
The reservoir is primarily drawn down in the late summer and fall to supplement flows to the hydroelectric powerhouses at Donnells Dam and Beardsley Dam and others on the Stanislaus River.
